25001405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{479}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 10802755

約数列:

[1, 5, 11, 13, 55, 65, 73, 143, 365, 479, 715, 803, 949, 2395, 4015, 4745, 5269, 6227, 10439, 26345, 31135, 34967, 52195, 68497, 174835, 342485, 384637, 454571, 1923185, 2272855, 5000281, 25001405]

約数ペア:

[(1, 25001405), (5, 5000281), (11, 2272855), (13, 1923185), (55, 454571), (65, 384637), (73, 342485), (143, 174835), (365, 68497), (479, 52195), (715, 34967), (803, 31135), (949, 26345), (2395, 10439), (4015, 6227), (4745, 5269)]